Acetylene-gas lamp.



Patented July l8, I899.

G. W. BAYLEY.

ABETYLENE GAS LAMP.

(Application filed July 29, 1898.)

(No Model.)

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GEORGE WILLIAM BAYLEY, OH New YORK, N. Y.

ACETYLENE-GAS LAM-P.

SPECIFICATION forming part of Letters Fatent NO. 628,912, dated July 18, 1899.

Application filed July 29,1898 Serial No. 687,161- (No modeld T0 ctZZ whom it may concern:

Be it known that I, GEORGE WILL AM BAY- LEY, of New York city, borough of Brooklyn, in the county of Kings andSt-ate of New York, have invented a new and Improved Acetylene-Lamp, of which the following is a full, clear, and exact description.

My invention relates to an improvement in acetylene-lamps of that class in which an excess of carbid is used and the generation of the gas is regulated by controlling the supply of water.

My invention Comprises the novel features hereinafter described and claimed.

Reference is to be had to the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the figures.

Figure 1 is a central sectional elevation of my lamp. Fig. 2 is a sectional plan taken upon the line 2 2 of Fig. 1, and Fig. 3 is a vertical section of a removable cartridge to be used with my lamp when desired.

My device comprises an inner and an outer case, the inner of which contains the carbid and the outer the water. Between the two is placed a valve which is controlled by the pressure of the gas, so as to admit water to the carbid when the pressure falls below a fixed point and to close the valve as soon as the pressure rises above the fixed point.

The outer case A is made of any convenient or desired shape,-but preferably circular. This case is made with a removable cap or covering, by which the inner case, containing the carbid, maybe removed or inserted, as desired. The cap A is secured at its lower edge to a ring B, which is eXteriorly threaded and screws within an interiorly-threaded ring B, whichis secured to the upper edge of the body Between the two rings ber, leather, or similar material. The lower ring B, which is secured to the upper part of the base or body of the outer case A, isprovidedwitharecess adapted to receivea flange 0 upon the inner case 0. The inner case 0 is made as a cup, having an open top which is covered bya cap 0 said top having perforations C- therein, permitting the escape of the gas. The flange O fills the recess in the ring B and supports the inner case O at a proper elevation. The inner case 0 is the carbid holder or generator, and projecting upward centrally from its bottom is a cylinder E, which contains the valve mechanism by which the water is admitted to the carloidholder or cut off, as desired. The cylinder E has a cap E screwed or otherwise secured to the upper end thereof. It is also provided with a number of holes a in its side, adapted to admit water to the carbid-holder. Within this cylinder is placed a valve F, which valve, as herein shown, consists of two pistons spaced a short distance apart and provided with packing rings F in their periphery. These packing-rings may be omitted if the fit of the piston within the cylinder is carefully regulated.

The stem F of the valve is hollow and at its lower end passes through an opening in the bottom of the cylinder E. The valve is normally held down, so as to close the openings e in the cylinder by a spring F which is placed between the upper end of the valve and the cap E. The lower end of the stem F engages a flexible diaphragm I), which closes an opening in the bottom of the outer case A. This diaphragm is held byits edges between the bottom of the outer case and a ring D, which is secured thereto. This ring is threaded, as is also a cap D which is screwed thereon and forms a support for a spring D which bears against the under side of the diaphragm D. The spring D is stronger than the spring F and will, if permitted,hold the valve elevated, so that the water is freely admitted from the outer case into the carbidholder.

The water for generation of gas is placed within an annular water-reservoir G, which is placed in the upper portion of the outer case and surrounds the inner case or carbidholder. This water-reservoir is formed by an inner wall G and a bottom G which are secured to the outer wall of the casing so as to make a water-tight chamber. This chamber is filled through a cup G, which may be unscrewed from the outside. In the reservoir is placed a valve by which the water may be permitted to flow into the lower portion of the outer case and then be admitted to the valve F.

Until it is desired to use the lamp the wa ter is retained in the reservoir G, where it cannot by any possibility come in contact with the carbid. hen it is desired to light the lamp, the valve in the bottom of the water-reservoir is opened, thus permitting the Water to run into the space between the inner and outer cases.

The valve, as herein shown, consists of a cylinder g, perforated longitudinally to form a tube and inserted through the Water-reservoir. The lower end of this tube projects into the space'beneath the water-reservoir. Above the bottom of the water-reservoir a lateral holeg is formed, communicating with the interior of the water-reservoir. Within the tube 9 is inserted a valve-stem g which is threaded therein and is pointed at its lower end, so as to close the lower end of the tube. The upper end'of this stem 9 extends above the valve and is provided with a knob by which it may be readily turned.

Within the inner case or carbid-holder is placed a tube K, designed to form a connection between the spaces above and below the packing-ring B so as to secure an equalization of pressure. This tube atits upper end is connected with a hole formed through the side of the inner case above the packing-ring B and at its lower end with a hole which is preferably below the lower edge of the waterreservoir G. The lower end of the tube may, however, be connected with the outside of the inner case at any point below the packing-ring B provided such connection is at a point that is not stopped by intimate contact with the inner wall of the water-reservoir.

A vent is supplied for the water-reservoir, so that gas may be admitted thereto when the Water runs out. As herein shown, this vent consists of a tube G extending from the bottom of the water-reservoir to near its upper end. This tube is open at top and bottom, forming a free connection between the space beneath the water-reservoir and the inside of the water-reservoir. Gas flows into the water-reservoir through this tube when the water flows out.

A blow-off valve, by which excessive pressure in the lamp is obviated, is provided. This blow-off valve is located in the bottom of the outer case and consists of a valve I, which is held against the lower side of the bottom by a spring 1*, said spring being retained in position by a cap I From this valve a tube I extends upwardly to a point where it is in constant communication with the interior of the lamp. As herein shown, this tube extends within the water-reservoir and terminates just short of' the upper end of the reservoir.

The interior of the reservoir is in constant communication with the gas-chambers of the lamp through the tube G The blow-off tube I is located close alongside the vent-tube G and is in constant communication with the gas-chambers of the lamp. If by reason of any leakage of the valve F or by reason of water which remains within the carbidchamber when the valve is closed gas should be generated after the light has been turned off, this excess of gas will be discharged through the blow-off valve. This will prevent undue rise in pressure within the lamp and injury which might occur to the lamp therefrom. The burner J is connected to the cap A and has a valve-stem J extending to a point Where it may be conveniently operated.

In Fig. is shown a cartridge intended for use in connection with this lamp. As shown in Fig. 1, the carbid is placed immediately'in contact with the inner case or carbid-holder O. In some cases it may be desirable instead of this construction to use a cartridge which when removed will remove the residue left from the decomposition of the carbid. This cartridge is constructed as shown in Fig. 3. It consists of two telescopic cups H and H, having their closed ends outward. These cups are made annular, having cylinders H and H placed concentric with the outer walls and telescoping in the same manner as the cups H and H. The cylinder I'I ,Whl(3l1 forms a portion of the lower cup, has a series of perforations h in its sides, through which the Water is admitted to the carbid Within the cup. These cups are provided with a longitudinal groove h at one side, adapted to accommodate the pipe K, which is within the inner case 0. These cups are made telescopic, partly because the lime resulting from the decomposition of the carbid is of greater bulk than the carbid. The cartridge being telescopic may extend as its contents increase in volume. Two or more of these cartridges may be supplied with each lamp, one cartridge being filled and ready to insert as soon as the old cartridge is removed.

In charging the lamp with carbid and water the valve 9 will be closed, so that the water cannot gain access to the carbid unless the use of the light isdesired at once. IVhen it is desired to light the lamp, the valve 9 is opened, admitting the water to the carbid. This feature is of manifest advantage, particularly where the lamp is used upon bicycles, carriages, or in locations where it is subject to constant or occasional shocks and changes of position. It furnishes an additional security against accidental admission of water to the carbid and the high pressures and waste of gas resulting therefrom.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent I 1. An acetylene-lamp, comprising an inner and an outer case adapted respectively to hold water and carbid, a diaphragm in the bottom of the outer case, a tube extending upward from the bottom of the inner case above the diaphragm and having holes establishing commu nication between the inn erand outer cases, and a valve in said tube having a stem engaging the diaphragm,substantially as described.

2. An acetylene-lamp, comprising an outer and an inner case adapted respectively to hold water and carbid, a diaphragm in the bottom of the outer case, a spring acting thereon to raise it, a tube attached to the bottom of the inner case above the diaphragm, and having holes through its side and lower end connecting respectively with the inner and outer cases, and-a valve sliding in said tube and adapted to close the holes in its side, and having a stem projecting downward into contact with the diaphragm, substantially as de scribed.

3. An acetylene-lamp, comprising an outer and an inner case adapted respectively to hold water and carbid, a diaphragm in the bottom of the outer case, a spring acting thereon toraise it, a tube attached to the bottom of the inner case above the diaphragm, and having holes through its side andlower end connecting respectively with the inner and outer cases, and a valve sliding in said tube and adapted to close the holes in its side, and havinga stem projecting downward into contact with the diaphragm, a cap for the upper end of the tube, and a spring between the cap and the valve, acting to close the same, substantially as described.

4. An acetylene-lamp, comprising an outer and an inner case,adapted respectively to hold water and carbid, a diaphragm in the bottom .of the outer case, a valve in the bottom of the carbid-holder or inner case, having a stem engaging the diaphragm, a cap secured beneath the outer case, and a spring within said cap and pressing upward against the diaphragm, substantially as described.

5. An acetylene-lamp, comprising an outer and an inner case adapted respectively to hold water and carbid, a diaphragm in the bottom of the outer case, a spring acting thereon to raise it, a valve in the bottom of the carbidholder or inner case, having a stem engaging the diaphragm, and a cap removably secured to the top of the outer case and inclosing the inner case, said cap carrying the burner connection, substantially as described.

6. An acetylene-lam'p, comprising an outer and an inner case adapted respectively to hold water and carbid, a diaphragm in the bottom of the outer case, a spring acting thereon to raise it, a valve in the bottom of the carbidholder or inner case,-having a stem engaging the diaphragm, and a tube extending upward from the bottom of the outer caseand between its side and the side wall of the inner case, said tube opening at its upper end in the gasspace and at its lower end being provided with a blow-off valve, substantially as described.

7. An acetylene-gas lamp, comprising an outer and an inner case adapted respectively to hold water and carbid, a springcontrolled diaphragm in the bottom of the outer case, a valve in the bottom of the case and controlled by the diaphragm, and a blow-off valve in the outer case, substantially as described.

8. A cartridge or removable carbid-holder foracetylene-lamps,comprisin g two telescopic cups having their closed ends outward, the lower cup being provided with perforations for admission of water, the said cups being provided at one side with a longitudinal groove, substantially as described.

9. A cartridge or removable carbid-holder for acetylene lamps comprising two telescopic cups having their closed ends outward, the said cups being made annular and having cylinders placed concentric with the outer walls and telescoping in the same manner as the cups, the inner cylinder of the lower cup being provided with perforations, the said cups having a longitudinal groove at one side, for the purpose set forth.

10. Anacetyleneflamp,comprisinganouter and an inner case, the inner case being adapted to receive the carbid, and having a pressure-controlled valve in its bottom for the admission of water, a compartment within the outer case, forming a reservoir within which the water may be retained and held-from access to the carbid, and a valve in the bottom of the reservoir, the stem of which extends outside the lamp, substantially as described.

11. An acetylene-lamp,comprising an outer and an inner case, the inner case being adapted to receive the carbid, and having a pressure-controlled valve in its bottom for the admission of water, an annular closed waterreservoir within the outer case and surrounding the upper part of the carbid-holder, and a valve in the bottom of the reservoir, having a stem extending outside the lamp, substan tially as described.

12. An acetylene-lamp,comprising an outer and an inner case, the inner case being adapted to receive. the carbid, and having a pressure-controlled valve in its bottom for the admission of water, an annular closed waterreservoir within the outer case and above the car-bid in the holder, a valve in the bottom of the reservoir, having a stem extending out side the lamp, and a vent connecting the upper part of the water-reservoir with the gasspace in the lamp, substantially as described.

13. An acetylene gas lamp, comprising outer and inner cases, the latter serving asa carbid holder or generator, and havinga pressure-controlled valve in its bottom for the admission of water, the upper part of the outer case being removable and the inner case having a supportingflange held between the top and bottom parts of the outer case, an annular closed water-reservoir within the bottom part of the outer case and above the carbid in the inner case, a valve in the bottom of the water-reservoir, having an exterior operating-stem, a vent-pipe connecting the upper part of the water-reservoir with the space below it, and connections through the inner case between the top and bottom portions of the outer case, substantially as described.

14. An acetylene-gas lamp, comprising an outer and an inner case, the latter serving as a carbid' holder or generator, and having a pressure-controlled valve in its bottom for the admission of water, the upper part of the outer case being removable and the inner case having a supporting-flange held between the top and bottom parts of the outer case, an annular closed water-reservoir within the bottom part of the outer case and above the carbid in the inner case, a valve in the bottom of the water-resewoir, having an exterior operating-stem, a vent-pipe connecting the upperpart of the water-reservoir with the space below it, connections-through the inner case between the top and bottom portions of the outer case, a spring-controlled blow-off valve in the outer case, and a tube extending therefrom to the top of the water-reservoir, substantially as described.

15. An acetylene-lamp, comprising a case adapted to hold carbid and provided in its bottom with a pressure-controlled valve for the admission of Water, a case provided in its upper portion with a water-reservoir the lower portion of the case below the waterreservoir forming a space or chamber communicating with the interior of the carbidcase, and a valve controlled from outside the lamp for regulating the passage of Water from the reservoir to the said space or chamber communicating with the carbid-case, substantially as described.

16. An acetylene-lamp, comprising a case adapted to hold carbid and having a pressurecontrolled valve in its bottom for the admission of water, a case provided with a waterreservoir, and a chamber or space into which the said Water-reservoir opens, the said space or chamber being adapted for communication with the oarbid-case through the pressurecontrolled valve, a valve controlling the passage of water from the reservoir to said space or chamber, the said valve being controlled from outside the lamp, and a blow-off valve connected with the gas-space of the lamp, substantially as described.

17. An acetylene-lamp,comprising an outer case adapted to hold Water, an inner case having a pressure-controlled valvein its bottom, a tube located within the inner case and connecting the top and bottom portions of the outer case, and a removable cartridge or carbid-holder adapted to fit within the inner case and provided with a longitudinal groove at one side adapted to receive the said tube, substantially as described.

18. An acetylene-lamp, comprising an outer and aninner case,theinner case beingadapted to receive the carbid and having a pressurecontrolled valve in-its bottom for the admission of water, the said outer case being provided in'its upper portion with a compartment forming a reservoir for water, the lower portion of the said outer case, forming a space or chamber communicating with the carbidcase, a tube extending through the reservoir and projecting at its lower endinto the space or chamber in the lower part of the outer casing beneath the Water-reservoir, the said tube being provided with a lateral opening communicating with the reservoir and a stem arranged within the tube and adapted to close the opening in the lower end thereof, the up per end of the stem extending outside the lamp, substantially as described.

GEORGE WILLIAM BAYLEY.

Witnesses:

EVERARD BOLTON MARSHALL, H. L. REYNOLDS. 

